But how could Gu Chengyu know martial arts? Before Gu Chengyu went to the Prefecture School, they lived under the same roof, and he could be sure that Gu Chengyu had never practiced martial arts.
Could it be that he learned it while in the Prefecture? A bit of jealousy inevitably arose in the second son's heart. If he had gone to the Prefecture to study back then, he wouldn't have failed to even pass the Scholar's exam now.
But then he remembered the two black-clothed men who had just been killed, and his heart sank. Gu Chengyu seemed extremely mysterious; what exactly was he up to?
"Oh? You say you didn't see anything? But I think you saw everything." Gu Chengyu tightened his grip on the sword, cutting a bloody line on the second son's neck.
Feeling the pain on his neck, the second son, who had been distracted just now, started trembling with fear.
Seeing how Gu Chengyu killed without hesitation just moments ago, would he end up being killed by Gu Chengyu?
